Canopy and base load distribution on a longwall shield

Author:	Barczak, Thomas M.
Additional Authors:	Gearhart, David F.
Year:	1992
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:9418
Series:	Report of investigations / Bureau of Mines ;
Report Number:	9418
Subjects:	Longwall mining
	Mine roof control
	Dead loads (Mechanics)
Links:	https://hdl.handle.net/2027/mdp.39015077558487
	no.9418 1992